JP2004073659A - Traveling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a traveling device suppressing the fluctuations in speed in traveling and stably traveling. <P>SOLUTION: This traveling device is provided with a first frame 2, a second frame 3, a swinging pin 4 swingably supporting the both frames at the intersecting position between the first frame 2 and the second frame 3 and vertically moving by interlocked with the vertical movement of a footboard 1, and a transmission mechanism, when the first frame 2 and the second frame 3 are swung around the swinging pin 4 in lowering the footboard 1, transmitting the swing operation to a rear wheel 10 and rotating it, and when the first frame 2 and the second frame 3 are swung around the swinging pin 4 in raising the footboard 1, intercepting the transmission of the swing operation to the rear wheel 10. This device is also provided with an energy accumulating means 6 accumulating an energy produced when the footboard 1 lowers from the raising end and, when the footboard reaches the lowering end, releasing the accumulated energy and rotating the rear wheel 10. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling tool capable of providing a propulsive force in a traveling direction by mounting or riding on a rider. About the board.
[0002]
[Prior art]
In general, a traveling tool such as a roller ski or a roller skate includes a step on which a rider's foot is placed, and a roller rotatably disposed below the step, so that the rider can ride on the floor. There are two main types, one that moves forward with a propulsion force by kicking the surface and the other that moves forward with a propulsion force by a separate propulsion means. Among them, the one that obtains a propulsive force by a separate propulsion means is disclosed in, for example, Japanese Patent Application Laid-Open No. Sho 59-186574.
[0003]
As shown in FIGS. 6 and 7 in the publication, the traveling tool provided with the conventional propulsion means extends from the rear end of the stepping platform to the floor surface, and has a front wheel and a front wheel provided at its distal end and proximal end, respectively. A frame having a driving roller disposed at an intermediate portion thereof, a lever extending from a substantially intermediate portion of the step platform to the frame, and being swingable around a connection portion with the frame; Propulsion means for transmitting the oscillating motion to the drive roller to obtain a propulsive force, wherein the rider steps on the tip side of the step platform to apply a load, thereby causing the lever to oscillate and driving via the propulsion means. The roller was rotated and moved forward.
[0004]
However, in the running tool as described above, the rider moves the toe up and down around the heel and converts the displacement in the up and down direction into the rotation of the drive roller, so that the forward distance for one stepping operation is increased. There was a problem that it was few and lacked the excitement of driving. That is, the amount of displacement for obtaining the propulsive force is limited to a small amount of displacement associated with the vertical movement of the toe around the heel, and the rotation of the drive roller cannot be made sufficient.
[0005]
In addition, since stepping with the heel as a fulcrum is required to move forward, local muscular strength such as inflated shins is overworked, and excessive fatigue is expected during traveling, and long-time traveling is not possible. There was a problem that it became possible. Therefore, if the stepping action is performed using the same muscular strength as at the time of walking, and this action is used as the rotational force of the roller, the excessive fatigue as described above can be reduced, and a smooth running can be obtained. Proposals for such technologies have been expected.
[0006]
In view of the above circumstances, the applicant of the present invention has proposed in Japanese Patent Application No. 2001-217495 a traveling tool that can obtain a propulsive force by performing a stepping operation using the same muscular strength as when walking. Such a traveling tool is connected to the front wheel and the rear wheel via a frame, and transmits a pair of steps that move up and down by right and left stepping operations of the rider, and transmits a descending operation of each step to the rear wheel while transmitting a rising operation. And a transmission mechanism that does not.
[0007]
[Problems to be solved by the invention]
However, in the above-mentioned traveling tool, the driving force is not transmitted to the rear wheels until the stepping step on the foot side of the stepped foot reaches the descending end and reaches the rising end, so that the traveling state becomes idle. There is a problem that undulations occur in the speed. That is, in order to travel with the traveling tool, it is necessary to alternately depress the left and right feet, but after one foot has been depressed and the foot is fixedly supported, the other foot is lifted and depressed. However, since a state occurs in which no driving force can be obtained with any of the traveling tools, the traveling speed becomes uneven and stable traveling cannot be performed.
[0008]
The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a traveling tool that can suppress unevenness in speed during traveling and can achieve more stable traveling.
[0009]
[Means for Solving the Problems]
The invention as set forth in claim 1 is a step on which a foot of a rider can be placed, a first frame extending from a front end side of the step to a rear side and having a rear wheel at a tip thereof, and a rear end of the step A second frame extending from the side to the front side and intersecting with the first frame and having a front wheel at a tip thereof, and swingably supporting both frames at the intersection of the first and second frames; A swing pin that moves up and down in conjunction with the up and down movement of the step platform; and, when the first frame and the second frame swing around the swing pin in accordance with the descending operation of the step platform, the swing operation is performed on the rear wheel. When the step and the first frame are swung about the swing pin as the step is raised, the swing operation is transmitted to the rear wheel. Transmission mechanism to block A traveling tool with the step, the step platform stores energy generated in the process of descending from the rising end or its vicinity, and when the step platform reaches the descending end or its vicinity, the stored energy is released to release the stored energy. An energy storage means for rotating the rear wheel is provided.
[0010]
According to this configuration, when the rider puts his weight on the stepping platform and lowers it, the rocking pin moves down while rocking the first frame and the second frame, and the rocking operation is performed by the transmission mechanism by the rear wheel. And the rear wheel rotates and moves forward. Thereafter, when the stepping platform is raised, the rocking pins rise while rocking the first frame and the second frame, but the rocking operation is not transmitted to the rear wheels by the transmission mechanism.
[0011]
Here, the energy accumulating means accumulates energy generated in the process of descending the step, and releases the accumulated energy when the step reaches the descending end or in the vicinity thereof to rotate the rear wheel. It can be obtained even after reaching the falling end or its vicinity.
[0012]
According to a second aspect of the present invention, in the traveling tool according to the first aspect, the energy storage means is compressed in a process of lowering the step, and is restored to the pulling side when the step reaches the lower end or its vicinity. A compression spring for transmitting the restoring force to the rear wheel to rotate the rear wheel is provided.
[0013]
According to a third aspect of the present invention, in the traveling tool according to the first aspect, the energy storage means is extended in a process of lowering the step, and is restored to the compression side when the step reaches the lower end or its vicinity. In addition, there is provided a tension spring for transmitting the restoring force to the rear wheel to rotate the rear wheel.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The traveling tool of the first embodiment according to the present invention travels by converting a stepping operation of a rider into a rotational force of a rear wheel to obtain a propulsive force, and as shown in FIGS. 1 and 2, A main frame includes a step 1, a first frame 2 having a rear wheel 10, a second frame 3 having a front wheel 11, a swing pin 4, a one-way clutch 5, an energy storage means 6, and a steering means 26. Is configured.
[0015]
On the upper surface of the step 1, a fixture 7a for fixing a shoe 7 worn by a rider is formed so that the rider's foot can be placed. On the lower surface of the step 1, a supporting bracket 8 for supporting one end of the first frame 2 on the front end side (left side in FIG. 1) and a support for supporting one end of the second frame 3 on the rear end side (right side in FIG. 1). Metal fittings 9 are respectively attached. A long hole 8a extending in the horizontal direction (the left-right direction in the figure) is formed in the support fitting 8, and the one-end pin 2a protruding from one end of the first frame 2 is inserted into the long hole 8a. The first frame 2 is allowed to be displaced in the same direction.
[0016]
The first frame 2 extends rearward (retreating direction) from the above-described support fitting 8 and has a rear wheel 10 at the tip thereof. As shown in FIG. It mainly comprises a rod-shaped frame 2b and a suspension frame 2c for connecting the rod-shaped frame 2b. The first frame 2 is provided with a transmission mechanism for transmitting a swing operation of the first frame 2 about the swing pin 4 to the rear wheel 10. Here, the swing pin 4 swingably supports the two frames at the intersection of the first frame 2 and the second frame 3, and moves up and down in conjunction with the up and down movement of the platform 1.
[0017]
The transmission mechanism mainly includes a one-way clutch 5, a chain 14 suspended on sprockets 16 and 17, a chain 18 suspended on sprockets 15 and 21, and a fixture 19. The sprocket 16 is rotatable about the rotation axis of the sprocket 15, and is configured so that rotation of the sprocket 16 in the normal rotation direction can be transmitted to the sprocket 15 via the one-way clutch 5. The sprocket is provided with bearings.
[0018]
A pair of rollers 19a spaced by a predetermined distance are disposed on the fixture 19, and the front end of the second frame 3 (more specifically, a pin-shaped member 39 of the energy storage unit 6 described later) is provided between the rollers 19a. (See FIG. 4). The pin-shaped member 39 is connected to the support member 38 via the movable bush 13, and the support member 38 is connected to the tip of the second frame 3. , Chain 14 are operable.
[0019]
The one-way clutch 5 transmits a force for rotating the rear wheel in the forward direction, but does not transmit a force in the reverse direction. A one-way clutch 5 generally used for a rear wheel such as a bicycle is used. be able to. As shown in FIG. 2, the one-way clutch 5 has an outer peripheral surface supported by a housing 22, and a disc spring 23 provided via a holding plate 24 to press an end of the housing 22 against a sprocket 15. The housing 22, the sprocket 15, the holding plate 24, and the disc spring 23 exhibit a function of a torque limiter for preventing the device from being destroyed in the event of an excessive stepping load or reverse rotation of the rear wheel. Reference numeral 25 in the figure indicates an adjustment nut for adjusting the pressing force by the disc spring 23.
[0020]
The first frame 2 and the second frame 3 swing about the swing pin 4 as the step 1 descends by the transmission mechanism. Among them, the swinging of the second frame 3 causes the tip of the pin-shaped member 39 to move in an arc while rotating the chain 14, and the rotation of the chain 14 rotates the sprocket 16 (and the sprocket 17). The rotation is transmitted to sprocket 15 via one-way clutch 5. If the rotational force is excessive, slippage occurs between the housing 22 and the sprocket 15 and transmission of the rotational force is restricted.
[0021]
The rotation of the sprocket 15 causes the sprocket 21 to rotate via the chain 18, and the rotational force causes the rotating shaft 10 a to rotate together with the rear wheel 10, providing a propulsive force for moving the device forward. Here, when the step 1 reaches the bottom dead center, the state shown in FIG. 5 is obtained. In the process until the step reaches the bottom dead center, the energy storage means 6 stores the energy. Thereafter, the rear wheel 10 rotates. The details of the energy storage means 6 will be described later.
[0022]
On the other hand, when the step 1 rises after reaching the bottom dead center, the first frame 2 and the second frame 3 swing in the same manner as described above, and the sprocket 16 moves in the opposite direction to the above through the chain 14. Although it is rotated, the transmission of the subsequent force is interrupted by the one-way clutch 5, so that the rotation of the rear wheel 10 in the reverse direction is avoided.
[0023]
The second frame 3 extends frontward (in the forward direction) from the support fitting 9 described above, and has a front wheel 11 at the tip thereof. As shown in FIG. 3a and a plate-like frame 3b extending rearward from a part of the short side of the frame 3a. At the tip of the second frame 3, a steering means 26 for steering the front wheels in the direction when the second frame 3 is inclined with the inclination of the stepping board 1 is arranged.
[0024]
The steering means 26 includes a connecting shaft 27 fixed to the tip of the second frame 3 offset by a predetermined amount with respect to the extending direction of the second frame 3, and the connecting shaft 27 is rotatable in the axial direction. The upper frame 28 to be supported and the two front wheels 11 are mounted in parallel with each other via an axle 11a, and the lower frame 29 is rotatably mounted below the upper frame 28 in a plane parallel to the floor surface (see FIG. 3) and an arm pin 30 that extends from the end of the second frame 3 to the lower frame 29 and changes the tilt of the second frame 3 in the tilt direction of the lower frame 29.
[0025]
The upper frame 28 is rotatably attached to the distal end of the connecting shaft 27 by a fixed washer 31, and the lower frame 29 is attached to the upper frame 28 by a pin 32 inserted from the lower surface thereof and is parallel to the floor surface. It is rotatable in the direction. Further, the arm pin 30 is fitted to a rotating bracket 35 fixed to the tip of the second frame 3 and attached to the lower frame 29.
[0026]
According to the above configuration, when the rider inclines his / her foot to make a turn, the first frame 2 and the second frame 3 and the like also incline via the stepping board 1. At this time, the second frame 3 The arm pin 30 also rotates while pressing the lower frame 29 with the rotation. As a result, the pushed lower frame 29 is steered so that the foot of the rider is inclined, that is, turns inward. Therefore, if the rider leans his or her feet during the turn, the front wheels 11 are steered in that direction, so that a smoother turn can be realized.
[0027]
Further, as shown in FIG. 3, a ball 34 urged by a spring 33 is disposed on a connection surface between the upper frame 28 and the lower frame 29, and the ball 34 is arranged so that the front wheel 11 moves in the straight running direction. It is in a state of being fitted into a concave portion 29a formed on the upper surface of the lower frame 29 while facing. As a result, when the lower frame 29 rotates to change the direction of the front wheel 11, a force is exerted on the ball 34 so as to be accommodated in the recess 29a, so that the direction of the front wheel 11 is smoothly changed to the normal direction (straight direction) after the turn. It is returned to.
[0028]
Here, the traveling implement according to the present embodiment is provided with the energy storage means 6. The energy accumulating means 6 accumulates energy generated when the stepping platform 1 descends from the rising end or its vicinity, and releases the accumulated energy when the stepping platform 1 reaches the descending end or its vicinity to release the rear wheel. As shown in FIG. 4, the compression spring 36, the movable bush 13 and the bush 12 serving as seats for the compression spring 36, a rod 37 inserted through the compression spring 36, and a second frame. And a support member 38 fixed to the distal end of the support member 3.
[0029]
One end of the both ends of the rod 37 is fixed to the support member 38, and the bush 12 is fixed to the other end. The movable bush 13 is connected to the chain 14 via a pin-shaped member 39, and is movable between the bush 12 and the support member 38. As a result, when the tip of the second frame 3 descends as the step 1 descends, the compression spring 36 is compressed and the fixture 19 is pushed down via the pin-shaped member 39, so that the chain 14, the sprocket 16, the one-way clutch 5 ( The rear wheel 10 is rotated via the sprocket 15 and the chain 18 (see FIG. 2). By such rotation, the traveling tool gains propulsion and moves forward.
[0030]
Further, as shown in FIG. 5, when the step 1 comes into contact with the stopper S formed on the second frame 3 and reaches the lower end or the vicinity thereof, the compression amount of the compression spring 36 is maximized. In this state, the compression spring 36 stores elastic energy. That is, the compression spring 36 is compressed as the step 1 descends, and stores the potential energy of the step 1 as elastic energy of the compression spring 36.
[0031]
Thereafter, the compression spring 36 returns to the tension side (that is, the side where the spring extends) when the step 1 reaches the lower end or its vicinity, so that the compression spring 36 is pushed down until the movable bush 13 comes into contact with the support member 38. Accordingly, the chain 14 rotates via the pin-shaped member 39 and the fixture 19, and the sprocket 16 rotates. The rotation is transmitted to the sprocket 15 via the one-way clutch 5 and the rear wheel 10 is rotated. You.
[0032]
That is, in addition to the rotation of the rear wheel 10 due to the lowering operation of the step 1, the rear wheel 10 is also rotated by the release of the stored energy due to the restoration of the compression spring 36, so that after the step 1 reaches the lower end. In this case, the traveling tool also gains propulsion and continues to move forward. FIG. 6 shows a state in which the restoring operation of the compression spring 36 has been completed (a state in which the compression coil spring 36 has completely expanded).
[0033]
Next, a second embodiment according to the present invention will be described.
As shown in FIGS. 7 and 8, the traveling tool according to the present embodiment includes a step 1, a first frame 2 having a rear wheel 10, a second frame 3 having a front wheel 11, and a swing pin 4. , A one-way clutch (not shown), steering means 26, and energy storage means 6 '. The same components as those in the first embodiment are denoted by the same reference numerals, and the details are omitted.
[0034]
As in the first embodiment, the energy accumulating means 6 'accumulates energy generated in the process of the step 1 descending from the rising end or its vicinity, and accumulates when the step 1 reaches the descending end or its vicinity. And a pair of tension springs 40 disposed along the second frame 3, a supporting member 41 fixed to the tip of the second frame 3, It mainly comprises a swing member 42 which is swingably attached to the member 41.
[0035]
The swing member 42 is connected to the support member 41 by a pin 43 and is swingable about the pin 43 with respect to the support member 41. The swinging member 42 is formed of a member formed in a substantially rectangular shape, and a locking pin 44 for locking one end of the tension spring 40 is formed near a short-side end thereof, and a long-end near the long side end is fixed. Tool 19. On the other hand, the other end of the tension spring 40 is locked by a locking pin 45 formed at a connecting portion between the second frame 3 and the steering means 26.
[0036]
With the above configuration, when the tip of the second frame 3 descends with the descending of the step 1, the tension spring 40 is extended and the fixture 19 is pushed down via the swinging member 42, so that the chain 14, the sprocket 16, the one-way clutch ( The rear wheel 10 is rotated via a sprocket 15 and a chain 18 (not shown). By such rotation, the traveling tool gains propulsion and moves forward.
[0037]
Further, as shown in FIG. 9, when the platform 1 reaches the lower end or the vicinity thereof, the amount of tension of the extension spring 40 is maximized. In this state, the elastic energy is stored in the tension spring 40. That is, the tension spring 40 is pulled in the process of descending the platform 1, and stores the potential energy of the platform 1 as elastic energy of the extension spring 40.
[0038]
Thereafter, the tension spring 40 is restored to the compression side (ie, the side where the spring contracts) when the step 1 reaches the lower end or the vicinity thereof, so that the swing member is moved until the locking pin 44 comes into contact with the support member 41. By swinging 42, the chain 14 is rotated via the fixture 19. When the chain 14 rotates, the sprocket 16 rotates, and the rotation is transmitted to the sprocket 15 via a one-way clutch (not shown) to rotate the rear wheel 10.
[0039]
That is, in addition to the rotation of the rear wheel 10 due to the lowering operation of the step 1, the rear wheel 10 is also rotated by the release of the stored energy due to the restoration of the extension spring 40, so that the step 1 is similar to the first embodiment. Even after reaching the lower end, the traveling tool continues to move forward with the propulsive force. FIG. 10 shows a state in which the restoring operation of the extension spring 40 has been completed (an initial state of the extension spring 40).
[0040]
According to the above-described first and second embodiments, the rear wheel can be rotated by the energy storage means in addition to the rotation of the rear wheel caused by the depression of the stepping platform. It is possible to suppress a difference in propulsion force from the running tool on the foot side, and to stabilize the speed. In addition, the position of the stepping platform in a state where the rider is riding can be lowered to a height at which traveling is stable, so that more stable traveling can be realized.
[0041]
Although the present embodiment has been described above, the present invention is not limited to this, and includes a pair of steps that are connected to the front wheel and the rear wheel via a frame and that move up and down by right and left stepping actions of the rider. Any other traveling tool that has the ability to accumulate energy generated in the process of descending the platform and release the energy when the platform reaches or near the descending end to rotate the rear wheels. It may be in a form. For example, the transmission mechanism that transmits the descending operation of the stepping platform 1 to the rear wheel 10 may be another general-purpose mechanism, and may not have the torque limiter function.
[0042]
【The invention's effect】
According to the first aspect of the present invention, the energy accumulating means accumulates energy generated in the process of lowering the step from the rising end or the vicinity thereof, and stores the energy when the step reaches the lower end or the vicinity thereof. To rotate the rear wheel, so that the rear wheel can be rotated by the energy storage means in addition to the rotation of the rear wheel by stepping on the step platform, suppressing the undulation of the speed during traveling, and running more stably Can be achieved.
[0043]
According to the second aspect of the present invention, since the energy storage means has a compression spring and is configured to rotate the rear wheel with its restoring force, the configuration is simple and the effects of the first aspect are obtained. Can be.
[0044]
According to the third aspect of the present invention, since the energy storage means has a tension spring and is configured to rotate the rear wheel with its restoring force, the configuration is simple and the effect of the first aspect is obtained. Can be.
[Brief description of the drawings]
FIG. 1 is a right side view showing a traveling tool according to a first embodiment of the present invention in a state where the traveling tool is not depressed; FIG. 2 is a top view thereof; FIG. 3 is a front view thereof; FIG. FIG. 5 is an enlarged schematic view showing the energy storage means and the vicinity thereof in the traveling tool according to the embodiment of the present invention. FIG. 5 is a state in which the traveling tool according to the first embodiment of the present invention is stepped on, and the compression spring is compressed. FIG. 6 is a right side view showing a depressed state of the traveling tool according to the first embodiment of the present invention and showing a state after restoring a compression spring. FIG. 8 is a right side view showing a state in which the traveling tool according to the second embodiment of the present invention is not depressed. FIG. 8 is a top view of the traveling tool according to the second embodiment of the present invention. Oh, and the tension spring pulls FIG. 10 is a right side view showing a depressed state of the traveling tool according to the second embodiment of the present invention and showing a state after a tension spring is restored. ]
DESCRIPTION OF SYMBOLS 1 ... Step 2 ... 1st frame 3 ... 2nd frame 4 ... Swing pin (fulcrum)
5 One-way clutch 6, 6 'Energy storage means 7 Shoes 8, 9 Support bracket 10 Rear wheel 11 Front wheel 12 Bush 13 Movable bush 14, 18 Chain 15, 16, 17, 21 Sprocket 19 ... Fixing tool 22 ... Housing 23 ... Belleville spring 24 ... Holding plate 25 ... Adjustment nut 26 ... Steering means 27 ... Connecting shaft 28 ... Upper frame 29 ... Lower frame 30 ... Arm pin 31 ... Fixing washer 32 ... Pin 33 ... Spring 34 ... Ball 35 rotating bracket 36 compression spring 37 rod 38 support member 39 pin-shaped member 40 tension spring 41 support member 42 rocking member 43 pins 44 and 45 locking pin

Claims (3)

A platform on which the feet of the rider can be placed,
A first frame extending from a front end side of the stepping platform to a rear side and having a rear wheel at a tip end thereof;
A second frame extending from the rear end side of the step to the front side and having a front wheel at the end thereof while intersecting with the first frame;
A swing pin that swingably supports both frames at the intersection of the first frame and the second frame and moves up and down in conjunction with the up and down movement of the step platform;
When the first frame and the second frame swing around the swing pin in accordance with the descending operation of the step platform, the swing operation is transmitted to the rear wheel and rotated to advance the step platform, and A transmission mechanism that, when the first frame and the second frame swing around the swing pin in association with the ascent operation of the stepping platform, blocks the swing operation from being transmitted to the rear wheel;
A traveling tool with
Energy storing means for accumulating energy generated in a process in which the step ladder descends from the rising end or the vicinity thereof, and releasing the accumulated energy to rotate the rear wheel when the step pedestal reaches the descending end or the vicinity thereof. A running tool characterized by comprising: The energy storage means is compressed in the process of lowering the step, and restores to the pulling side when the step reaches the lower end or in the vicinity thereof, and transmits the restoring force to the rear wheel to transfer the rear wheel. The traveling device according to claim 1, further comprising a compression spring for rotating the traveling spring. The energy accumulating means is extended in the process of lowering the step, and restores to the compression side when the step reaches the lower end or in the vicinity thereof, and transmits the restoring force to the rear wheel to transfer the rear wheel. The traveling tool according to claim 1, further comprising a tension spring that rotates.

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